Create a hard-drive based OS X installer

macosxhints – Create a hard-drive based OS X installer

A recent post reminded me of a trick I’ve been using for the past year or so with great success, so I figured I’d share. Being a Mac specialist, I find myself having to do OS installs on a pretty regular basis. I carry around a couple of 2.5″ FireWire hard drives loaded with installers, diagnostics, and other goodies.

I wanted to be able to install the OS from one of my hard drives, like in the old days of OS 9, instead of having to boot the the machine from a CD or DVD. So here’s what I did:

I used Mike Bombich’s NetRestore Helper application (part of the NetRestore package) to create an Apple Software Restore (ASR) disk image of the Mac OS X install DVD. Then I applied that disk image to a partition on one of my hard drives, and voila! I had a clone of the install disc on my hard drive, which boots in seconds, and takes mere minutes to perform a system install (depending, obviously, on the speed of the machine you’re working on, and which options you’re installing).

Read on for a step-by-step walkthrough and some additional notes and thoughts.

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out /  Change )

Google+ photo

You are commenting using your Google+ account. Log Out /  Change )

Twitter picture

You are commenting using your Twitter account. Log Out /  Change )

Facebook photo

You are commenting using your Facebook account. Log Out /  Change )

Connecting to %s